# US 10,865,821 B2 · Joining device with wide accessibility for parts of furniture and furnishing items

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- Number: US 10,865,821 B2
- Document ID: US10865821B2
- Status: Granted
- Kind: B2
- Application number: 15/751,847
- Filed: 2016-10-05
- Published: 2018-08-23
- Granted: 2020-12-15
- Earliest claimed: 2015-10-09
- Applicants: Leonardo S.r.l.
- Inventors: Carlo Cattaneo
- Web page: https://patentgrep.com/patent/US10865821B2

## CPC

- F16B 12/2036: {with rotating excenters or wedges acting on a head of a pin or screw}
- A47B 96/066: {Supporting means received within an edge of the shelf}
- F16B 12/2063: {with engaging screw threads as tightening means}
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)

## Abstract

A joining device with wide accessibility for parts of furniture and furnishing items, of a first panel to a second panel to be moved towards each other to bring an edge of the second panel abutted in a tightening position against a surface of the first panel, includes a blocking group and a connection group. The blocking group is inserted inside a seat defined within the first panel and receiving the blocking group, and includes a toothed crown, which is housed in a casing positioned in a first holing in the first panel and which controls the movement of a grub screw engaging a pin of the connection group. The casing includes a pair of half-shells that can be coupled with each other and that each contain a hole that is aligned on the two half-shells and with an additional holing of the shoulder intersecting the first holing.

## Claims

### Claim 1

A joining device for parts of furniture and furnishing items, the joining device being adapted to couple a first panel to a second panel that move toward each other along an approach direction so as to bring an edge of the second panel abutted against a surface of the first panel, the joining device comprising:
a blocking group adapted to be lodged within the first panel; and
a connection group adapted to be attached to the second panel,
wherein the blocking group is adapted to be inserted inside a longitudinal seat defined in a thickness of the first panel and extending perpendicularly to the approach direction, the blocking group being configured to be actuated from at least one side of the seat,
wherein the blocking group comprises,
a threaded screw having a head shaped as a toothed crown and a threaded stem extending from the head,
a grub screw engaging the threaded stem, and
a casing housing an entirety of the threaded screw and the grub screw,
wherein the connection group comprises a pin having a first end and a second end, the second end being threaded and adapted to engage a threaded bush disposed within the second panel,
wherein the casing has a first opening configured to receive a tool engaging the toothed crown, and a second opening longitudinally aligned with the first opening and configured to receive the first end of the pin,
whereby a rotation of the toothed crown causes a longitudinal movement of the grub screw toward or away from the pin, so as to engage or disengage the pin.

### Claim 2 (depends on 1)

The joining device according to claim 1, wherein the casing is composed of two half shells, wherein at least one groove is defined on an interior wall of at least one of the two half shells, and wherein the grub screw comprises at least one protuberance shaped to be received in the at least one groove so at to define a direction of longitudinal motion of the grub screw.

### Claim 3 (depends on 2)

The joining device according to claim 2, wherein two half shells are joined to each other by one or more second pins extending from one of the two half shells and engaging one or more cavities defined in another one of the two half shells.

### Claim 4 (depends on 2)

The joining device according to claim 2, wherein at least one of the two half shells has a seat defined therein the supports the toothed crown, thereby preventing a longitudinal movement of the toothed crown toward the grub screw.

### Claim 5 (depends on 1)

The joining device according to claim 1, wherein the first end of the pin has a housing defined therein that is configured to receive an end of the threaded stem.

### Claim 6 (depends on 1)

The joining device according to claim 1, wherein the casing has a third opening laterally opposite to the first opening and also configured to receive the tool engaging the toothed crown.

### Claim 7 (depends on 1)

The joining device according to claim 1, wherein the casing has a fourth opening laterally opposite to the second opening.